MCM Electronics

RDL Audio Controlled RelayMCM Part #: 555-ST-ACR2  |  Radio Design Labs Part #: ST-ACR2

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Accepts balanced or unbalanced input, and provides a DPDT relay output when the presence of an audio signal is detected. It is perfect when adding "audio-power-on" capability to existing equipment. Because the relay utilizes NO and NC contacts, it may also be used in "silence sensing" applications. Trigger threshold is adjustable from -30dBu~0dBu. Adjustable, 5~50 second, off delay sets the time required to for the relay to release when the audio drops below threshold. A 50mA open-collector output is also provided to drive a slave relay or indicator LED.

Product Description

  • Contact rating: 2A, 250VAC
  • Input impedance: 10Kohm
  • Power requirement: 24~33VDC, 50mA, ground referenced

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    Package Specifications & Dimensions
    Weight:0.23 lbs.
    Hazardous:No
    Warranty:1095 days
    Need to Return?
    Length:4.25 in.
    Width:2.25 in.
    Height:2 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages
    Catalog/Page:

    MCM Cat 57, Page 149

    MCM Cat 56, Page 164

    PDF Reference
    Datasheet

    Requires Adobe Acrobat Reader.

    Mfr. Info

    Radio Design Labs Logo
    Mfr. Name:Radio Design Labs
    Mfr. Part Number:ST-ACR2
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